function blockDestroyed() {
    if (waveone.nextGen > 1350) {
        waveone.nextGen -= 20 * settings.creationSpeedModifier;
    } else if (waveone.nextGen > 600) {
        waveone.nextGen -= 10 * settings.creationSpeedModifier;
    } else {
        waveone.nextGen = 600;
    }

    if (waveone.difficulty < 35) {
        waveone.difficulty += 0.11 * settings.speedModifier;
    } else {
        waveone.difficulty = 35;
    }
}

function waveGen(hex) {
    this.lastGen = 0;
    this.last = 0;
    this.nextGen = 2300;
    this.start = 0;
    this.colors = colors;
    this.ct = 0;
    this.hex = hex;
    this.difficulty = 1;
    this.dt = 0;
    this.update = function() {
        this.currentFunction();
        this.dt = (settings.platform == 'mobile' ? 10.0 : 15) * MainHex.ct;
        this.computeDifficulty();
        if ((this.dt - this.lastGen) * settings.creationSpeedModifier > this.nextGen) {
            if (this.nextGen > 600) {
                this.nextGen -= 14 * ((this.nextGen / 1300)) * settings.creationSpeedModifier;
            }
        }
    };

    this.randomGeneration = function() {
        if (this.dt - this.lastGen > this.nextGen) {
            this.ct++;
            this.lastGen = this.dt;
            var fv = randInt(0, MainHex.sides);
            addNewBlock(fv, colors[randInt(0, colors.length)], 1.6 + (this.difficulty / 15) * 3);
            var lim = 5;
            if (this.ct > lim) {
                var nextPattern = randInt(0, 3 + 21);
                if (nextPattern > 15) {
                    this.ct = 0;
                    this.currentFunction = this.doubleGeneration;
                } else if (nextPattern > 10) {
                    this.ct = 0;
                    this.currentFunction = this.crosswiseGeneration;
                } else if (nextPattern > 7) {
                    this.ct = 0;
                    this.currentFunction = this.spiralGeneration;
                } else if (nextPattern > 4) {
                    this.ct = 0;
                    this.currentFunction = this.circleGeneration;
                } else if (nextPattern > 1) {
                    this.ct = 0;
                    this.currentFunction = this.halfCircleGeneration;
                }
            }
        }
    };

    this.computeDifficulty = function() {
        if (this.difficulty < 35) {
            if (this.difficulty < 8) {
                this.difficulty += (this.dt - this.last) / (2066667) * settings.speedModifier;
            } else if (this.difficulty < 15) {
                this.difficulty += (this.dt - this.last) / (43333333) * settings.speedModifier;
            } else {
                this.difficulty += (this.dt - this.last) / (90000000) * settings.speedModifier;
            }
        }
    };

    this.circleGeneration = function() {
        if (this.dt - this.lastGen > this.nextGen + 500) {
            var numColors = randInt(1, 4);
            if (numColors == 3) {
                numColors = randInt(1, 4);
            }

            var colorList = [];
            nextLoop: for (var i = 0; i < numColors; i++) {
                var q = randInt(0, colors.length);
                for (var j in colorList) {
                    if (colorList[j] == colors[q]) {
                        i--;
                        continue nextLoop;
                    }
                }
                colorList.push(colors[q]);
            }

            for (var i = 0; i < MainHex.sides; i++) {
                addNewBlock(i, colorList[i % numColors], 1.5 + (this.difficulty / 15) * 3);
            }

            this.ct += 15;
            this.lastGen = this.dt;
            this.shouldChangePattern(1);
        }
    };

    this.halfCircleGeneration = function() {
        if (this.dt - this.lastGen > (this.nextGen + 500) / 2) {
            var numColors = randInt(1, 3);
            var c = colors[randInt(0, colors.length)];
            var colorList = [c, c, c];
            if (numColors == 2) {
                colorList = [c, colors[randInt(0, colors.length)], c];
            }

            var d = randInt(0, 6);
            for (var i = 0; i < 3; i++) {
                addNewBlock((d + i) % 6, colorList[i], 1.5 + (this.difficulty / 15) * 3);
            }

            this.ct += 8;
            this.lastGen = this.dt;
            this.shouldChangePattern();
        }
    };

    this.crosswiseGeneration = function() {
        if (this.dt - this.lastGen > this.nextGen) {
            var ri = randInt(0, colors.length);
            var i = randInt(0, colors.length);
            addNewBlock(i, colors[ri], 0.6 + (this.difficulty / 15) * 3);
            addNewBlock((i + 3) % MainHex.sides, colors[ri], 0.6 + (this.difficulty / 15) * 3);
            this.ct += 1.5;
            this.lastGen = this.dt;
            this.shouldChangePattern();
        }
    };

    this.spiralGeneration = function() {
        var dir = randInt(0, 2);
        if (this.dt - this.lastGen > this.nextGen * (2 / 3)) {
            if (dir) {
                addNewBlock(5 - (this.ct % MainHex.sides), colors[randInt(0, colors.length)], 1.5 + (this.difficulty / 15) * (3 / 2));
            } else {
                addNewBlock(this.ct % MainHex.sides, colors[randInt(0, colors.length)], 1.5 + (this.difficulty / 15) * (3 / 2));
            }
            this.ct += 1;
            this.lastGen = this.dt;
            this.shouldChangePattern();
        }
    };

    this.doubleGeneration = function() {
        if (this.dt - this.lastGen > this.nextGen) {
            var i = randInt(0, colors.length);
            addNewBlock(i, colors[randInt(0, colors.length)], 1.5 + (this.difficulty / 15) * 3);
            addNewBlock((i + 1) % MainHex.sides, colors[randInt(0, colors.length)], 1.5 + (this.difficulty / 15) * 3);
            this.ct += 2;
            this.lastGen = this.dt;
            this.shouldChangePattern();
        }
    };

    this.setRandom = function() {
        this.ct = 0;
        this.currentFunction = this.randomGeneration;
    };

    this.shouldChangePattern = function(x) {
        if (x) {
            var q = randInt(0, 4);
            this.ct = 0;
            switch (q) {
                case 0:
                    this.currentFunction = this.doubleGeneration;
                    break;
                case 1:
                    this.currentFunction = this.spiralGeneration;
                    break;
                case 2:
                    this.currentFunction = this.crosswiseGeneration;
                    break;
            }
        } else if (this.ct > 8) {
            if (randInt(0, 2) === 0) {
                this.setRandom();
                return 1;
            }
        }

        return 0;
    };

    // rest of generation functions

    this.currentFunction = this.randomGeneration;
}